samba/backport-0004-CVE-2021-3738-s4-rpc_server-lsa-make-use-of-dcesrv_s.patch
haochenstar 8378df4821 fix CVE-2020-25717,CVE-2020-25718,CVE-2020-25719,CVE-2020-25721,CVE-2020-25722,CVE-2016-2124,CVE-2021-3738
(cherry picked from commit aee849c6c0708056f62f6445e3b5274d1cec6408)
2022-01-19 11:41:35 +08:00

44 lines
1.5 KiB
Diff

From 79d62d83e23fe5969cb432262ab9addad59a3b8d Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Thu, 5 Aug 2021 14:24:25 +0200
Subject: [PATCH 264/266] CVE-2021-3738 s4:rpc_server/lsa: make use of
Conflict: NA
Reference: https://git.samba.org/samba.git/?p=samba.git;a=patch;h=79d62d83e23fe5969cb432262ab9addad59a3b8d
dcesrv_samdb_connect_as_user() helper
This avoids a crash that's triggered by windows clients using
handles from OpenPolicy[2]() on across multiple connections within
an association group.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---
source4/rpc_server/lsa/lsa_init.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/source4/rpc_server/lsa/lsa_init.c b/source4/rpc_server/lsa/lsa_init.c
index f33b61c4035..400c5093079 100644
--- a/source4/rpc_server/lsa/lsa_init.c
+++ b/source4/rpc_server/lsa/lsa_init.c
@@ -71,12 +71,7 @@ NTSTATUS dcesrv_lsa_get_policy_state(struct dcesrv_call_state *dce_call,
}
/* make sure the sam database is accessible */
- state->sam_ldb = samdb_connect(state,
- dce_call->event_ctx,
- dce_call->conn->dce_ctx->lp_ctx,
- session_info,
- dce_call->conn->remote_address,
- 0);
+ state->sam_ldb = dcesrv_samdb_connect_as_user(state, dce_call);
if (state->sam_ldb == NULL) {
return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
--
2.23.0